root hair
noun Date: 1853 a filamentous extension of an epidermal cell near the tip of a rootlet that functions in absorption of water and minerals

New Collegiate Dictionary. 2001.

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  • Root hair — Root Root, n. [Icel. r[=o]t (for vr[=o]t); akin to E. wort, and perhaps to root to turn up the earth. See {Wort}.] 1. (Bot.) (a) The underground portion of a plant, whether a true root or a tuber, a bulb or rootstock, as in the potato, the onion …   The Collaborative International Dictionary of English

  • root hair — root′ hair n. bot an elongated tubular extension of an epidermal cell of a root, serving to absorb water and minerals from the soil • Etymology: 1855–60 …   From formal English to slang

  • root hair — n. Bot. any of the thin walled, hairlike tubular outgrowths from a growing root, which serve to absorb water and minerals from the soil …   English World dictionary

  • root hair — noun thin hairlike outgrowth of an epidermal cell just behind the tip; absorbs nutrients from the soil • Hypernyms: ↑plant organ • Part Holonyms: ↑root * * * noun : one of the many hairlike tubular outgrowths of epidermal or sometimes cortical… …   Useful english dictionary

  • Root hair — A root hair is a tubular outgrowth of root epidermal cells of vascular plants. They are found only in the region of maturation of the root. Root hairs are a specialized form of rhizoid.Root hairs form an important surface over which plants absorb …   Wikipedia

  • root hair — rizoidai statusas T sritis ekologija ir aplinkotyra apibrėžtis Samanų, kerpių, dumblių, grybų panašios į šaknis išaugos, kuriomis šie augalai prisitvirtina prie substrato, pasisavina iš jo vandenį ir mineralines medžiagas. atitikmenys: angl.… …   Ekologijos terminų aiškinamasis žodynas

  • root hair — /ˈrut hɛə/ (say rooht hair) noun an elongated tubular extension of an epidermal cell of the root serving to absorb water and minerals from the soil …   Australian English dictionary

  • root hair — an elongated tubular extension of an epidermal cell of a root, serving to absorb water and minerals from the soil. [1855 60] * * * …   Universalium

  • root hair cell — Root epidermal cell, part of which projects from the root surface as a thin tube, thus increasing the root surface area and promoting absorption of water and ions …   Dictionary of molecular biology

  • Root hairs — Root hair cells, the rhizoids of many vascular plants, are tubular outgrowths of trichoblasts, the hair forming cells on the epidermis of a plant root. That is, root hair cells are lateral extensions of a single cell and only rarely branched.… …   Wikipedia

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